According to the company's official history, Sigelei founder Ou Junbiao heard four thunderclaps while trying to choose a name for his company. Taking the thunder as a sign, he called his company "Si Ge Lei" -- or Sigelei. The name literally means "four thunders" in Chinese. Today, Sigelei has positioned itself at the forefront of research and development in the vaping industry and has more than 80 patents to its credit. If you want to own a vaping device with the features that all the other vaping devices will have next year, you need to buy a Sigelei. Enjoy free shipping on all orders when you buy from SMOKLY!